Mud, sand, dirt, rocks, or water-the JVC's KS-DR2104DBT is built to last. This compact, drvn DR Series KS-DR2104DBT amp will add new clarity and impact to the basic sound system in almost any kind of vehicle on land or water. The compact size allows it to fit in a lot of places where space is tight. The marine-rated 4-channel amp will power your audio system with 50 watts RMS per channel-over 2x the power of most factory radios or aftermarket marine receivers. The amp features a tough, all-weather chassis that's certifiably waterproof, dustproof, salt-spray rustproof, and resistant to damage caused by excessive vibrations. This amp is designed to last in most any car, boat, ATV, or UTV.